Palace will check on Alex Marrow, who has been struggling with an ankle problem and failed a fitness test ahead of the game against Sheffield United.
Nathaniel Clyne is playing despite an ongoing knee problem, which has restricted his training.
MATCH PREVIEW
Fresh from winning their proverbial six-pointer at home to Sheffield United on Saturday, Crystal Palace will look to take another step away from the bottom three when they visit Portsmouth.
Palace's weekend victory took them five points clear of United, leaving the Yorkshire side entrenched in the relegation zone. It also stretched the Eagles' recent good run - they have lost only one of their last six matches.
A victory on Tuesday would take them to within one point of? troubled Portsmouth, who eased their own relegation fears with a 1-0 victory against Barnsley last time out, courtesy of Kanu's late header.
That win - their second in succession - was a major boost for Pompey, as was the performance of on-loan forward David Cotterill. The Wales international made an impressive home debut and could be a key player in the coming weeks.
MATCH FACTS
Head-to-head
• This is the 50th league encounter between these clubs. Palace have won 18 and Portsmouth 13 of the previous 49.
• Palace have won only one of their last eight league and cup matches against Pompey.
Portsmouth
• A victory for Portsmouth would see them win three in a row for the first time since October.
• Only 143 of Portsmouth's 321 goal attempts this season have been on target. At 43%, it is the poorest ratio in the division.
• Aaron Mokoena is standing by for his 150th league appearance.
• Hayden Mullins and Hermann Hreidarsson could both face their former club.
Crystal Palace
• Palace have won two, drawn three and lost one since Dougie Freedman took permanent charge.
• The Eagles have the worst away record in the the second tier, with one win, three draws and 12 defeats, and 37 goals conceded.
• They have only picked up one point from eight away matches against current bottom-half clubs.
• Palace have failed to score in 14 Championship matches this season - more than any other team.
Source: BBC Sport
Source: BBC Sport